Gauge



Patented Mar. 6, i923.

KEITH WILLIAMS, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAIVI H. MINER, OFCHAZY, NEW YORK.

GAUGE.

Application filed June 13, 1921.

T 0 all w izo-m. t may concern.

Bc it known that I, KEITH Timur-ilus, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful improvement in Gauges, of which thefollowing is a full, clear, concise, and exact lescription, referencebeing had to the accompanying drawings, forming a part of thisspecification.

This invention relates to improvements in gauges.

In the manufacture of what are known as Miner frictiondraft gears, oneof the elements employed is a wedge of peculiar formation. Said `Wedgehas three Wet ge faces, a cross-section through which produces anequilateral triangle. At the inner end of said Wedge, that is, at thepoint of the Wedge of the least cross-section, outwardly-turnedshoulders are formed which act as stops for certain anti-frictionrollers. An illustration of such a Miner friction draft gear employing aWedge of the character described be found in OConnor Patent No.1,220,264, dated March 27, 1917. On account of the peculiar formationofthe Wedge, it has been found difficult to accurately gauge the Wedgeby any ordinary-means.

The object of my invention is to provide a simple and efficient gaugefor determining the accuracy of the angles between the Wedge faces andthe cross-sectional area of wedges of the character hereinbeforedescribed.

Other objects of the invention Will more clearly appear from thedescription and claims hereinafter following.

ln the drawing Vforming a part of Vthis specification, Figurel is a topplan view of a gauge embodying my improvements. In this ligure, VtheWedge to be measuredhis indicated in dotted lines. Figure 2 is averticalsectional view corresponding substantially to the line 2-2 of Figure 1.FigureV 3 is a detail sectional view corresponding substantially totheline 3'-3 of Figure 1 and illustrating a portion of the wedge insection. Figure 4 Vis a broken view corresponding to Figure 1,illustrating the use of a certain attachment for Wedges of differentsize. And Figure 5 is an end view of the attachment `shovvn in Figure aand illustrating by dotted lines 'the manner of applying it to the gaugeproper.

Serial N'o. 476,993.

Referring first to the construction illustrated in Figures 1, 2 and 3,the gauge is shown as embodying, broadly, a frame A; a fixed guide ortube B; a second pivotally mounted guide or tube Cga lever D; and athird guide or tube E.

The frame A, as shown, is of elongated loop formation havingsubstantially semicircular ends 10 and 10a united by straight sections11--11. The end 10a is slightly offset from the remainder of the loop Afor the purpose hereinafter described. On the back or upper section, asit appears in F igure 1, there is applied rigidly the stationary guideor tube B, Which is preferably in the form of a hollow tube of one-inchdiameter and corresponding -to the anti-friction rollers employed insaid Miner friction draft gears. Said tube or guide B may be secured tothe frame by any suitable means-as, for instance, the spacers 12-12 andsecuring rivets 13, as best shown in Figure 2.

The tube or guide C, which is preferably of hollow form and of one-inchdiameter, similar to the tube or guide B, is pivotally mounted, as bymeans of the pivot pin 14, on a radially inwardly-extended arm 15 rigidwith the frame A. Said tube or guide C has secured thereto an indicatorarm 16 having a scale 17 at its outer end that cooperates vvith a zeromark 18 on the frame A to indicate the-angular position of the guide Cwith respect to its pivot 14.

The lever D preferably consists of two plates 19 and 20, which straddlethe section 10a of the frame, and as the pla-te section 10a, as shown inFigs. 1 and 2, is downwardly offset Wit-h reference to the end 10 andthe sections '11, the upper plate 19 is brought substantially in linewith the Vmain portion of the frame A. Said two plates 19 and 20,constituting the lever, are pivotally attached to the main frame A, asindicated at 21, at a point substantially axially in line with the fixedguide or tube B. The lever 19-20 is of arcuate form adjacent its pivotalend, as best shown in Figure l [at 20a and from the plate 2O is extendedradially inward toward the center of the gauge an arm 22, to which ispivotally connected, as by means of the pin 28, the guide or tube E,which is also similar to the stationary guide or tube B. Attached tothe. tube or guide E and extending radially outwardly therefrom is anindicator arm 24 having a scale 25 thereon adapted to coi-operate with aradially-extending zero m-ark26 similar to the indicator 1?18. Inaddition, the section l()21 of the main frame is provided with anotherindicator scale,` as indicated by the series of lines 27--27 arranged atright angles to the zero line 26, and with which is adapted toco-operate the outer ystraight edge 28 of the indicator arm 2-1.

Itigidly secured to the stationary frame A is a suitable handle 29 andto the outer end of the lever D is secured another handle 30.

The location and arrangement of the guides or tubes B, C and E are suchthat when. applied to a wedge of true equilateral triangularcross-section of the proper area, which wedge is indicated in dottedlines at Slin Figure 1, the zero of the scale 17 will come opposite theZero line 18; the zero of the scale 25 will come opposite the Zero line26; and the edge 28 of the indicator arm 2-i will come opposite the zeroline of the scale 27e-27. Furthermore, the pivotal points 14C and 23will be equally spaced from the center 32 of the fixed guide or tube B.

The operation is as follows. The operator first swings the lever 30 inan opening direction, as indicated by the arrow Z2. The wedge is theninserted with the proper portion thereof in engagement with the twoguidesor tubes B and C. The lever 30 is then swung back to its operativeposition in the direction indicated by the arrow a.. The lever I) isthen forced as far toward the stationary handle 29 as possible and thereadings then taken. If the cross-section of the wedge is of trueequilateral triangular cross-section,` and vof the proper area, zeroreadings will obtain in each instance, as shown in Figure l. If,however, the crosssectional area (regardless of the true equilateraltriangular cross-section) is greater or less than the standard, theguide or tube E will obviously assume a position to either side of itsproper position shown by the full lines in Figure 1, and thecorresponding readings will be found on the scale 27-27. Again, if theangle between the two faces in engagement with the guides B and E iscorrectthat is, 60obut the angle between the face in engagement with theguide C and either of the other faces is greater or less than 60o, theguide C will be correspondingly oscillated about the pivot 14, and thevariation will be indicated by the scale 17. Similarly, if the face ofthe wedge in engagement with the guide IC extends. at au angle greateror less than 60, with the face of the wedge in engagement with the guideB, the variation will be indicated by the scale 25.

The arrangement shown may be used by unskilled labor; the readings areproduced substantially automatically; the gauges for variations in bothangle of the faces and area; and the gauging accurately determines theposition which will be assumed by the anti-friction rollers to be usedwith the wedge. By having the two-piece lever D straddle the section 10aof the main frame, all possibility of the lever D being deflectedupwardly or downwardly is positively prevented.

To adapt my improved gauge for similar wedges but of lesscross-sectional area, I may employ an attachment indicated at F inFigures 4f and 5. This attachment consists merely of a semi-cylindricaltube 132 having spaced pairs of spring arms 33-33 adapted to snap overthe stationary guide B. A centering pin 34k is formed on the attachnientF, said pin being adapted to enter a hole 35 in the stationary guide B.The ends of the semi-cylindrical tube 182 are tapered or beveled, asindicated at lid-36, so as to adapt the attachment to partially enterbetween the adjacent ends of the guides C and E. It will be noted thatthe attachment does not affect the question of angles between the facesof the wedge, but does affect the area of the cross-section of the wedgeat the point which is gauged.

I have herein shown and described what I now consider the preferredmanner of carrying out the invention, but the same is merelyillustrative and I contemplate all changes and modifications that comewithin the scope of the claims appended hereto.

I claim:

1. In a gauge of the character described, the combination with asuitable frame; of a fixed guide thereon; a second guide pivotallymounted with respect to said frame; a lever pivotally attached to saidframe; and a third guide pivotally attached to said lever, said threeguides, when all are in operative positio-n, defining a triangularopening.

2. In a gauge of the character described, the combination with asuitable frame; of a iixedguide on said frame; and two additional guidespivotally adjustable with respect to said first-named guide, said threeguides, when all arein operative position, defining a triangularopening.

3. In a gauge of the character described, the combination with arigidframe; `of a fixed guide on saidk frame; a second guide pivotallyattached to said frame; a member device y movably mounted on said frame;and a v said first-named guide, said three guides,

when all are in operative position, deiining a triangular opening; andco-operable means on the frame and each of said pivoted guides arrangedto indicate the angular position of each guide with respect to itspivot.

5. In a gauge of the character described, the combination With a rigidframe; of a fixed guide on said frame; a second guide pivotally attachedto said frame; a member guide and the frame to indicate the relativeproximity of the pivot of said third guide to the remaining guides; andco-operable means on the frame and each of said pivoted guides arrangedto indicate the angular po sition of each guide with respect to itspivot.

7. In a gauge of the character described, the combination With a frame;ot a fixed guide thereon; a second guide pivotally attached to saidframe; a lever pivotally attached to said frame; a third guide pivot-`ally attached to said lever; and indicator means carried by the frameand said third guide arranged to indicate the positio-n of the pivot ofsaid third guide with respect to the other two guides.

8. In a gauge of the character described, the combination With aloop-Shaped rigid frame having indicating means thereon; of a iixedguide carried on said frame; a second guide pivotally attached to saidframe; a radially-extending indicator arm carried by said guide andradially extending from said pivotal connection, and co-operable Withsaid indicating means; a lever pivotally attached to said frame; a thirdguide pivotally mounted on said lever: an indicator arm rigid With saidguide and extending radially from said pivotal connection; indicatingmeans on said frame and lastnamed indicator arm adapted to indicate theangular position of said third guide with respect to its pivot;additional indicating means on said frame and indicator arm of the thirdmentioned guide arranged to indicate the relative position of the pivotof the third guide with respect to the remaining guides; a fixed handlecarried by the frame; and a handle carried by said lever.

9. In a gauge of the character described, the combination with aloop-shaped rigid frame; or' a fixed guide carried on said frame; asecond guide pivotally attached to said frame; a radially-extendingindicator armV carried by said guide and radially extending from saidpivotal connection and co-operable with indicating means on the frame; alever pivotally attached to said trame; a third guide pivotally mountedon said lever; an indicator arm rigid with said guide and extendingradially from said pivotal connection; indicating means on said trameand last-named indicator arm adapted to indicate the angular position ofsaid third guide With respect to its pivot; additional indicating meanson said frame and indicator arm of the third mentioned guide ar` rangedto indicate the relative position of the pivot of the third guide withrespect to the remaining guides; a fixed handle carried by the frame;and a handle carried by said lever, each of said guides being of tubularformation.

In Witness that I claim the foregoing I have hereunto subscribed my namethis 9th day ofJune, 1921.

KEITH WILLIAMS.

Witnesses:`

CARRIE GAILING, ANN BAKER.

